Not working erratically without min-width or min-height

We have the following code placement in the bottom of our website

```



const observer = lozad('[data-src]');
observer.observe();

```

And it seems to work fine for me but some of our users reported the images are not loading at all and I couldn't produce it locally. I noticed those users may have older machines but I'm not sure if it's a factor

We then try add some css and it seems to work

```
img[data-src] {
min-width: 1px;
min-height: 1px;
}
```

here's the example of the image

```

```

Maybe we can update the README? What do you think?